Question

3.No the list price and the number of bids or five randomly selected items sold through online auctions. Using this data oi the regression line for predicting the number of bids an item will receive based on the list Answer Questions 9 to 12 based on the table below that gives price. Price in Dollars 109 148 179 187 199 Number of Bids 10 11 14 19 20 9. Find the estimated slope. A. 0.231 B. 1.126 C. 0.112 D. 0.613 10. Find the estimated y-intercept. A. -3.613 3. 3.613 . 2.116 . -2.116 . Find the value of the coefficient of determination. 0.931 0.803 0.918 0.897 Determine if the statement "Not all points predicted by the linear model fall on the same or false. True False

Answer 1

109 10 1090 11881 100 148 1 1628 21904 121 179 14 2506 32041 196 187 19 3553 34969 361 199 20 3980 39601 400 Σ x = 822.0, Σ's 74.0 Σ XY = 12757.0, Σ xx-140396.0, ΣΥΥ = 1178.0

9)

5 12757.0-822.0 74.0 5 140396.0-822.0 822.0 0.1125

Option C is correct
10)

74.0140396.0 822.0 12757.0 Cl 596.0-822.0*8220 -3.6869

Option A is correct
11)

5 12757.0 - 822.074.0 0.8962 5 140396.0-822.026 1178.0- 74.02)


0.8962- 0,803

Option B is correct